﻿#region Copyright notice and license
// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc.  All rights reserved.
// http://github.com/jskeet/dotnet-protobufs/
// Original C++/Java/Python code:
// http://code.google.com/p/protobuf/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//     * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#endregion

using System;
using System.Collections;
using System.Collections.Generic;
using Google.ProtocolBuffers;
using Google.ProtocolBuffers.TestProtos;
using NUnit.Framework;

namespace Google.ProtocolBuffers {
  [TestFixture]
  public class ExtendableBuilderLiteTest {

    [Test]
    public void TestHasExtensionT() {
      TestAllExtensionsLite.Builder builder = TestAllExtensionsLite.CreateBuilder()
          .SetExtension(UnitTestLiteProtoFile.OptionalInt32ExtensionLite, 123);

      Assert.IsTrue(builder.HasExtension(UnitTestLiteProtoFile.OptionalInt32ExtensionLite));
    }

    [Test]
    public void TestHasExtensionTMissing() {
      TestAllExtensionsLite.Builder builder = TestAllExtensionsLite.CreateBuilder();
      Assert.IsFalse(builder.HasExtension(UnitTestLiteProtoFile.OptionalInt32ExtensionLite));
    }

    [Test]
    public void TestGetExtensionCountT() {
      TestAllExtensionsLite.Builder builder = TestAllExtensionsLite.CreateBuilder()
          .AddExtension(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite, 1)
          .AddExtension(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite, 2)
          .AddExtension(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite, 3);

      Assert.AreEqual(3, builder.GetExtensionCount(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite));
    }

    [Test]
    public void TestGetExtensionCountTEmpty() {
      TestAllExtensionsLite.Builder builder = TestAllExtensionsLite.CreateBuilder();
      Assert.AreEqual(0, builder.GetExtensionCount(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite));
    }

    [Test]
    public void TestGetExtensionTNull() {
      TestAllExtensionsLite.Builder builder = TestAllExtensionsLite.CreateBuilder();
      string value = builder.GetExtension(UnitTestLiteProtoFile.OptionalStringExtensionLite);
      Assert.IsNull(value);
    }

    [Test]
    public void TestGetExtensionTValue() {
      TestAllExtensionsLite.Builder builder = TestAllExtensionsLite.CreateBuilder()
          .SetExtension(UnitTestLiteProtoFile.OptionalInt32ExtensionLite, 3);

      Assert.AreEqual(3, builder.GetExtension(UnitTestLiteProtoFile.OptionalInt32ExtensionLite));
    }

    [Test]
    public void TestGetExtensionTEmpty() {
      TestAllExtensionsLite.Builder builder = TestAllExtensionsLite.CreateBuilder();
      Assert.AreEqual(0, builder.GetExtension(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite).Count);
    }

    [Test]
    public void TestGetExtensionTList() {
      TestAllExtensionsLite.Builder builder = TestAllExtensionsLite.CreateBuilder()
          .AddExtension(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite, 1)
          .AddExtension(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite, 2)
          .AddExtension(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite, 3);

      IList<int> values = builder.GetExtension(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite);
      Assert.AreEqual(3, values.Count);
    }

    [Test]
    public void TestGetExtensionTIndex() {
      TestAllExtensionsLite.Builder builder = TestAllExtensionsLite.CreateBuilder()
          .AddExtension(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite, 0)
          .AddExtension(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite, 1)
          .AddExtension(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite, 2);

      for(int i = 0; i < 3; i++ )
        Assert.AreEqual(i, builder.GetExtension(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite, i));
    }

    [Test,ExpectedException(typeof(ArgumentOutOfRangeException))]
    public void TestGetExtensionTIndexOutOfRange() {
      TestAllExtensionsLite.Builder builder = TestAllExtensionsLite.CreateBuilder();
      builder.GetExtension(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite, 0);
    }

    [Test]
    public void TestSetExtensionTIndex() {
      TestAllExtensionsLite.Builder builder = TestAllExtensionsLite.CreateBuilder()
          .AddExtension(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite, 0)
          .AddExtension(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite, 1)
          .AddExtension(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite, 2);

      for (int i = 0; i < 3; i++)
        Assert.AreEqual(i, builder.GetExtension(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite, i));

      builder.SetExtension(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite, 0, 5);
      builder.SetExtension(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite, 1, 6);
      builder.SetExtension(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite, 2, 7);

      for (int i = 0; i < 3; i++)
        Assert.AreEqual(5 + i, builder.GetExtension(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite, i));
    }

    [Test, ExpectedException(typeof(ArgumentOutOfRangeException))]
    public void TestSetExtensionTIndexOutOfRange() {
      TestAllExtensionsLite.Builder builder = TestAllExtensionsLite.CreateBuilder();
      builder.SetExtension(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite, 0, -1);
    }

    [Test]
    public void TestClearExtensionTList() {
      TestAllExtensionsLite.Builder builder = TestAllExtensionsLite.CreateBuilder()
        .AddExtension(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite, 0);
      Assert.AreEqual(1, builder.GetExtensionCount(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite));
      
      builder.ClearExtension(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite);
      Assert.AreEqual(0, builder.GetExtensionCount(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite));
    }

    [Test]
    public void TestClearExtensionTValue() {
      TestAllExtensionsLite.Builder builder = TestAllExtensionsLite.CreateBuilder()
        .SetExtension(UnitTestLiteProtoFile.OptionalInt32ExtensionLite, 0);
      Assert.IsTrue(builder.HasExtension(UnitTestLiteProtoFile.OptionalInt32ExtensionLite));

      builder.ClearExtension(UnitTestLiteProtoFile.OptionalInt32ExtensionLite);
      Assert.IsFalse(builder.HasExtension(UnitTestLiteProtoFile.OptionalInt32ExtensionLite));
    }

    [Test]
    public void TestIndexedByDescriptor() {
      TestAllExtensionsLite.Builder builder = TestAllExtensionsLite.CreateBuilder();
      Assert.IsFalse(builder.HasExtension(UnitTestLiteProtoFile.OptionalInt32ExtensionLite));
      
      builder[UnitTestLiteProtoFile.OptionalInt32ExtensionLite.Descriptor] = 123;
      
      Assert.IsTrue(builder.HasExtension(UnitTestLiteProtoFile.OptionalInt32ExtensionLite));
      Assert.AreEqual(123, builder.GetExtension(UnitTestLiteProtoFile.OptionalInt32ExtensionLite));
    }

    [Test]
    public void TestIndexedByDescriptorAndOrdinal() {
      TestAllExtensionsLite.Builder builder = TestAllExtensionsLite.CreateBuilder()
        .AddExtension(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite, 0);
      Assert.AreEqual(1, builder.GetExtensionCount(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite));

      IFieldDescriptorLite f = UnitTestLiteProtoFile.RepeatedInt32ExtensionLite.Descriptor;
      builder[f, 0] = 123;

      Assert.AreEqual(1, builder.GetExtensionCount(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite));
      Assert.AreEqual(123, builder.GetExtension(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite, 0));
    }

    [Test, ExpectedException(typeof(ArgumentOutOfRangeException))]
    public void TestIndexedByDescriptorAndOrdinalOutOfRange() {
      TestAllExtensionsLite.Builder builder = TestAllExtensionsLite.CreateBuilder();
      Assert.AreEqual(0, builder.GetExtensionCount(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite));

      IFieldDescriptorLite f = UnitTestLiteProtoFile.RepeatedInt32ExtensionLite.Descriptor;
      builder[f, 0] = 123;
    }

    [Test]
    public void TestClearFieldByDescriptor() {
      TestAllExtensionsLite.Builder builder = TestAllExtensionsLite.CreateBuilder()
        .AddExtension(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite, 0);
      Assert.AreEqual(1, builder.GetExtensionCount(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite));

      IFieldDescriptorLite f = UnitTestLiteProtoFile.RepeatedInt32ExtensionLite.Descriptor;
      builder.ClearField(f);
      Assert.AreEqual(0, builder.GetExtensionCount(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite));
    }

    [Test]
    public void TestAddRepeatedFieldByDescriptor() {
      TestAllExtensionsLite.Builder builder = TestAllExtensionsLite.CreateBuilder()
        .AddExtension(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite, 0);
      Assert.AreEqual(1, builder.GetExtensionCount(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite));

      IFieldDescriptorLite f = UnitTestLiteProtoFile.RepeatedInt32ExtensionLite.Descriptor;
      builder.AddRepeatedField(f, 123);
      Assert.AreEqual(2, builder.GetExtensionCount(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite));
      Assert.AreEqual(123, builder.GetExtension(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite, 1));
    }

    [Test]
    public void TestMissingExtensionsLite()
    {
        const int optionalInt32 = 12345678;
        TestAllExtensionsLite.Builder builder = TestAllExtensionsLite.CreateBuilder();
        builder.SetExtension(UnitTestLiteProtoFile.OptionalInt32ExtensionLite, optionalInt32);
        builder.AddExtension(UnitTestLiteProtoFile.RepeatedDoubleExtensionLite, 1.1);
        builder.AddExtension(UnitTestLiteProtoFile.RepeatedDoubleExtensionLite, 1.2);
        builder.AddExtension(UnitTestLiteProtoFile.RepeatedDoubleExtensionLite, 1.3);
        TestAllExtensionsLite msg = builder.Build();

        Assert.IsTrue(msg.HasExtension(UnitTestLiteProtoFile.OptionalInt32ExtensionLite));
        Assert.AreEqual(3, msg.GetExtensionCount(UnitTestLiteProtoFile.RepeatedDoubleExtensionLite));

        byte[] bits = msg.ToByteArray();
        TestAllExtensionsLite copy = TestAllExtensionsLite.ParseFrom(bits);
        Assert.IsFalse(copy.HasExtension(UnitTestLiteProtoFile.OptionalInt32ExtensionLite));
        Assert.AreEqual(0, copy.GetExtensionCount(UnitTestLiteProtoFile.RepeatedDoubleExtensionLite));
        Assert.AreNotEqual(msg, copy);

        //The lite runtime removes all unknown fields and extensions
        byte[] copybits = copy.ToByteArray();
        Assert.AreEqual(0, copybits.Length);
    }

    [Test]
    public void TestMissingFieldsLite()
    {
        TestAllTypesLite msg = TestAllTypesLite.CreateBuilder()
            .SetOptionalInt32(123)
            .SetOptionalString("123")
            .Build();

        byte[] bits = msg.ToByteArray();
        TestAllExtensionsLite copy = TestAllExtensionsLite.ParseFrom(bits);
        Assert.AreNotEqual(msg, copy);

        //The lite runtime removes all unknown fields and extensions
        byte[] copybits = copy.ToByteArray();
        Assert.AreEqual(0, copybits.Length);
    }
  }
}
